AUDIO PROBLEMS: Sound Stopped Working After Reboot!

[Guest]

Hello all,

As the title says, my sound has stopped working after a reboot. This is a new system (one-week old hardware, fresh install of Kubuntu 15.10). Linux audio is quite complicated, and I've tried my best to search forums and troubleshoot, but to no avail. Currently, Phonon Audio and Video can't detect any of my hardware devices and drivers, just lists a "Dummy Output". My backend is Phonon GStreamer.

This is what I've done so far to try to solve this problem.

1. Installed all recent updates.

2. Checked if my sound card is found by Kubuntu:

$ aplay -l
aplay: device_list:268: no soundcards found...

3. Checked if my sound card is detected by Kubuntu/ALSA:

$ echo "Sound cards recognized by the system:"; lspci -nn | grep --color=none '\[04[80][13]\]'; echo "Sound cards recognized by ALSA:"; lspci -nn | grep '\[04[80][13]\]' | while read line; do lspci -nnk | grep -A 3 '\[04[80][13]\]' | grep -e 'Kernel modules: ..*' -e '\[04[80][13]\]' | grep --color=none -F "$line"; done; echo "Sound cards recognized by ALSA, and activated:"; lspci -nn | grep '\[04[80][13]\]' | while read line; do lspci -nnk | grep -A 3 '\[04[80][13]\]' | grep -e 'Kernel drivers in use: ..*' -e '\[04[80][13]\]' | grep --color=none -F "$line"; done
Sound cards recognized by the system:
00:1f.3 Audio device [0403]: Intel Corporation Sunrise Point-H HD Audio [8086:a170] (rev 31)
Sound cards recognized by ALSA:
00:1f.3 Audio device [0403]: Intel Corporation Sunrise Point-H HD Audio [8086:a170] (rev 31)
Sound cards recognized by ALSA, and activated:
00:1f.3 Audio device [0403]: Intel Corporation Sunrise Point-H HD Audio [8086:a170] (rev 31)

4. Checked if my sound card is enabled:

$ lspci -nn | grep '\[04[80][13]\]' 
00:1f.3 Audio device [0403]: Intel Corporation Sunrise Point-H HD Audio [8086:a170] (rev 31)

Longer output:

00:1f.3 Audio device: Intel Corporation Sunrise Point-H HD Audio (rev 31)
        Subsystem: ASUSTeK Computer Inc. Device 86c7
        Control: I/O- Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx+
        Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
        Latency: 32
        Interrupt: pin A routed to IRQ 126
        Region 0: Memory at d1040000 (64-bit, non-prefetchable) [size=16K]
        Region 4: Memory at d1020000 (64-bit, non-prefetchable) [size=64K]
        Capabilities: [50] Power Management version 3
                Flags: PMEClk- DSI- D1- D2- AuxCurrent=55mA PME(D0-,D1-,D2-,D3hot+,D3cold+)
                Status: D0 NoSoftRst+ PME-Enable- DSel=0 DScale=0 PME-
        Capabilities: [60] MSI: Enable+ Count=1/1 Maskable- 64bit+
                Address: 00000000fee0f00c  Data: 4122
        Kernel driver in use: snd_hda_intel

I also made sure in my BIOS that the sound card is enabled.

5. Removed, purged and reinstalled alsa-base, alsa-utils, pulseaudio, linux-sound-base.

6. Upgraded to latest ALSA-drivers (https://wiki.ubuntu.com/Audio/UpgradingAlsa/DKMS) ... currently have the package oem-audio-hda-daily-dkms_0.201603112217~ubuntu15.10.1_all.deb installed.

7. Added myself to the proper groups:

$ sudo usermod -aG `cat /etc/group | grep -e '^pulse:' -e '^audio:' -e '^pulse-access:' -e '^pulse-rt:' -e '^video:' | awk -F: '{print $1}' | tr '\n' ',' | sed 's:,$::g'` `whoami`

None of this so far has worked! Here's my asla-info (http://www.alsa-project.org/db/?f=1a...68f9b1fd99f304).

I appreciate all of you in helping me out with this problem.

Thanks!

[Notsonoble]

I just booted from a 15.10 live cd after my laptop started having similar problems. I can only confirm that sound worked on the live cd. This seems to be a update issue, but i couldn't tell you which update is responsible. (mine didn't start until 3/20 but my updates may have been behind)

[Durhamhs]

I have the exact same problem after updating to the 15.10 after updating the KDE update from the backend.

[Notsonoble]

Okay the following commands seem to have worked for me
killall pulseaudio; rm -r ~/.config/pulse/* ; rm -r ~/.pulse*
pulseaudio -k

then a reboot.

[Notsonoble]

so my other laptop did this after some updates that i hadn't done to it. And the pulseaudio reconfigure didn't fix it

[Notsonoble]

so my other laptop did this after some updates that i hadn't done to it. And the pulseaudio reconfigure didn't fix it

[Notsonoble]

Early upgrading to 16.04 fixed the second laptop... not my favourite way to do this, but at least it shows promise